I've recently been playing around with patches for FFX, and found an intriguing but unfortunate issue with the way the item modifiers are set up: they overwrite other items. After idly wondering where the ***** my lvl3 sphere keys had gone, I decided to try my hand at altering the codes to make it do what I want.

To much success: What I thought would change the item modifier slot, turned my dark matter into potions instead. Argh.

So I'm hoping someone who has an inkling about these things is willing to help me. Using these codes: